How do Siberian tigers and sikas intersect in their effort to survive?

The forests of far eastern Russia - a herd of Sika Deer. The animals are restless. They nervously scour the area. The herd is on their way to the coast. It’s a route they know well. As they emerge from the cover of the trees, the smell and sounds of the sea draw the Sika in like a magnet. Thick sea fog hangs over the hills. The herd descends onto the beach. They are after one thing – sea kelp. The brown algae are rich in both nutrients and salts.

The coastal forests here are poor in minerals, washed out by the continuous rain and snow. The fresh kelp is a crucial supplement to the Sika’s diet, and they are willing to risk the dangers they could encounter here. Siberian or Amur tigers patrol these beaches and Sika deer are on their menu. The herd has good reason to be nervous. But the tiger is returning to a kill it has hidden in the rocks. An adult deer is too large for a tiger to consume in one sitting, so it will return for several days to finish the meal. And others are waiting patiently in the wings.

The Siberian tiger is the largest of the big cats and can take down a fully-grown bear. But here on the coast, the Sika deer make easy prey. The high cliffs limit the number of escape routes and a seemingly tranquil beach can turn out to be a trap. There are less than 400 Siberian tigers left in the wild, and nearly all live in the southeast corner of Russia. But this is the first time they have been filmed in their coastal habitat.

A hungry tiger can eat up to 40 kilos of meat at a go, but this one does not seem that interested. Nevertheless, it knows that soon there may be little left. A half-hearted warning aimed at the insolent crows - the big cat decides it’s too much effort and abandons the carcass. With a full stomach, it’s more tempting to settle for a nap.